Invention Grant
- Patent Title: Carrier aggregation front end architecture
- Patent Title (中): 运营商汇聚前端架构
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Application No.: US13848393Application Date: 2013-03-21
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Publication No.: US09118376B2Publication Date: 2015-08-25
- Inventor: Nadim Khlat , Marcus Granger-Jones , Ruediger Bauder
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H04L27/00 ; H03H7/46 ; H03H7/01
Abstract:
Radio frequency (RF) front end circuitry includes a notch diplexer. The notch diplexer includes a high pass filter coupled between a high band port and an antenna port, and a low pass notch filter coupled between a low band port and the antenna port. The high pass filter is adapted to receive a high band receive signal having a high band carrier frequency at the antenna port, and pass the high band receive signal to the high band port. The low pass notch filter is adapted to receive a low band transmit signal having a low band carrier frequency at the low band port, and attenuate distortion in the low band transmit signal about a notch stop band before passing the low band transmit signal to the antenna port. According to one embodiment, the notch stop band includes the high band carrier frequency.
Public/Granted literature
- US20130250819A1 CARRIER AGGREGATION FRONT END ARCHITECTURE Public/Granted day:2013-09-26
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